Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

80 Jr Troubleshooting- B+ measurements
#14

LOL morzh! Nothing like a self-inflicted problem, but it was good for me to sort through tracking it down.  This is only the second set I've worked on but after viewing one of Bob Andersen's videos I decided to go ahead and take it "almost" completely apart to clean it up.  It was pretty rusty so I thought this would be a good set to do some learning on. I know there has been debate on painting chassis but decided to at least do the top since that's where the rust was.  Left the underside alone.  Some pics in various stages; the last with my attempts at molding dogbone resistors (the 3 in the center)...I think that will take more practice Icon_biggrin
[Image: https://www.dropbox.com/s/js614bmbqcizad....jpg?raw=1]

[Image: https://www.dropbox.com/s/mtk2lmnpfclmlx....jpg?raw=1]

[Image: https://www.dropbox.com/s/o9a9vdef8jxnax....jpg?raw=1]

[Image: https://www.dropbox.com/s/wf63s95xdn4urz....jpg?raw=1]

[Image: https://www.dropbox.com/s/5k2ts5p3w90exf....jpg?raw=1]

[Image: https://www.dropbox.com/s/f5i3ov45ng443o....jpg?raw=1]

I also learned in this process that the bakelite cap blocks are not always wired as you would expect them to be from the Bakelite Data Sheet, so you need to double check them.  

Now back to tracking down why my B+ is low


Messages In This Thread
RE: 80 Jr Troubleshooting advice - by Mondial - 07-07-2013, 02:43 PM
RE: 80 Jr Troubleshooting advice - by morzh - 07-07-2013, 03:31 PM
RE: 80 Jr Troubleshooting advice - by klondike98 - 07-07-2013, 06:35 PM
RE: 80 Jr Troubleshooting advice - by 7estatdef - 07-07-2013, 08:45 PM
RE: 80 Jr Troubleshooting advice - by klondike98 - 07-07-2013, 09:22 PM
RE: 80 Jr Troubleshooting advice - by klondike98 - 07-08-2013, 04:37 PM
RE: 80 Jr Troubleshooting advice - by 7estatdef - 07-08-2013, 06:29 PM
RE: 80 Jr Troubleshooting advice - by klondike98 - 07-10-2013, 08:48 AM
RE: 80 Jr Troubleshooting advice - by 7estatdef - 07-10-2013, 07:36 PM
RE: 80 Jr Troubleshooting advice - by klondike98 - 07-11-2013, 09:09 AM
RE: 80 Jr Troubleshooting-Solved! - by Mondial - 07-11-2013, 09:28 AM
RE: 80 Jr Troubleshooting-Solved! - by morzh - 07-11-2013, 11:14 AM
RE: 80 Jr Troubleshooting-Solved! - by klondike98 - 07-11-2013, 06:35 PM
RE: 80 Jr Troubleshooting-Solved! - by 7estatdef - 07-11-2013, 08:32 PM
RE: 80 Jr Troubleshooting-Solved! - by klondike98 - 07-12-2013, 02:33 PM



Users browsing this thread: 8 Guest(s)
[-]
Recent Posts
462ron
Hi Levi, here’s just a thought. Most radios run the oscillator higher than the dial setting. Say you set your radio to 1...462ron — 10:10 AM
1930s Stewart-Warner Tombstone Radio need help identifying model number
Another Update: I found a couple of damaged coils inside this radio that might have something to do with why this radio ...captainclock1988 — 10:51 PM
6TPZ and 5TPO Radio Help
If you are still on 5TPO, you lost me there. What X7? What Points 1 and 2?morzh — 08:37 PM
6TPZ and 5TPO Radio Help
Quick progress report: X7 is broken. Only one leg soldered, the other missing and the diode is cracked. I've replaced...R3Sons — 05:05 PM
6TPZ and 5TPO Radio Help
Oh...and you have electrolytic caps there. All need to go and be replaced.morzh — 04:36 PM
6TPZ and 5TPO Radio Help
Thanks, will do.R3Sons — 01:25 PM
1930s Stewart-Warner Tombstone Radio need help identifying model number
UPDATE: I was able to pick up a signal generator on the cheap (amazingly enough) on feebay and I did an IF alignment fol...captainclock1988 — 09:53 AM
Philco 91 Schematic
Hi Rod, The resistor connects to pin 4 and the ungrounded side of block 9. From pin 9 of the RF tube to one side of ...dconant — 09:34 AM
Just got a 49-1613 need to know...everything!
I just found your post. I have this exact same model, and have had it since 1985 when I was 15 years old! I performed a ...MuzzcoVW — 09:11 AM
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM

[-]
Who's Online
There are currently 5998 online users. [Complete List]
» 1 Member(s) | 5997 Guest(s)
Avatar

>